Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Andrew James Overhiser, MD

Individual provider Gastroenterology Physician · NPI 1679789549

Andrew James Overhiser, MD is a Gastroenterology in Flagstaff, Arizona. Graduated from Indiana University School of Medicine in 2004, 22 years ago. Practices with Northern Arizona Healthcare Corporation, a 395-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Arizona.

Years since qualifying
22
Trained at
Indiana University School of Medicine
Licensed in
AZ
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1215 N Beaver St
Flagstaff, AZ 86001-3120
Phone: (928) 773-2200
Fax: (928) 773-2300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 42636 (AZ)

Record details

NPI number1679789549
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 15, 2007
Last updated in NPPESDecember 12, 2024
Certification dateDecember 12, 2024
Mailing address1895 N Jasper Dr Ste 1, Flagstaff, AZ 86001-1632

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Northern Arizona Healthcare Corporation — 395 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations8 on file with Medicare

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